VISCOUNT WALDEN ON THE BIRDS OF CELEBES. 51 
appears to become absorbed, and to retreat as the bird increases in age; or, as the 
anterior edge becomes more and more perpendicular to the culmen, it perhaps wears 
off, or is broken off. This can be traced in one example—the indent or hollow from 
which the fore part of the casque sprung, and in which it was attached to the culmen, 
a groove shaped like a V, three quarters of an inch long, not being filled up. 
Buceros sulcatus, Temm., from the Philippines, and B. corrugatus, Temm., from 
Borneo, belong to the same genus. 
CUCULID4. 
ScYTHROPINA. 
Scyrurops, Latham. 
59. ScyTHROPS NOV£-HOLLANDIA, Lath. Ind. Orn. i. p. 141, “ Nova Hollandia” (1790) ; 
Schlegel, Mus. Pays-Bas, Cuculi, p. 36; Temm. Pl. Col. 290. 
Cuculus presagus, Reinw. MS., ex Celebes. 
Hab. Menado, Macassar (mus. nostr.); Kema (Qorsten); Ceram, north coast (Jus. 
Ingd.); Ceram, south coast, adult males, April (Hoed¢); Obi-major, adult male, 29th 
of June, Batchian, adult male and female, end of June, a male, 8th of September 
(Bernstein); Flores (Wallace); New South Wales, between October and January 
(Gould); Cape York (mus. nostr.). 
Two individuals from the vicinity of Menado are, in their colouring and markings, 
almost identical with an example from Cape York. The dimensions of the wing and 
tail also agree. But the bill of the Menado male, measured from the nostril, is full 
two inches and three quarters in length, and that of the female two and five eighths, 
whereas that of the Cape-York bird is only two inches and a quarter. In form the 
bill of the Celebean bird differs from that of the Cape-York example. In the latter 
the culmen is rounded, smooth, and broad, and there is only one lateral channel or 
groove present. This starts from above the nostril, and runs in a line more or less 
parallel with the culmen. In the Menado male the culmen, on leaving the forehead, 
forms a distinct narrow ridge; on each side of it is a depression or shallow valley, 
formed and bounded by a second ridge, below which again is the channel observable in 
the Cape-York bird. In the bill of the Menado female the culmen is sharper and still 
more clearly defined; and the lateral channels, while being deeper, are prolonged 
nearly to the apex of the maxilla’. The type of structure is essentially that of the 
bill in some species of the Bucerotide. 
We know nothing of this form out of Australia. In that country it is migratory. 
Its geograpical distribution in the archipelago, as at present known, is anomalous; for 
it occurs in Flores, and is not recorded from Lombock or Timor. It has been found in 
Batchian, but not in Gilolo; in Ceram, but not in Bourou. 
‘ A Macassar example, since obtained, presents a similar structure. 
: K2 
